[Amps] Oscilloscope Purchase

[Carl]

----- Original Message ----- 
From: "Ron Youvan" <ka4inm at gmail.com>
To: "amps" <amps at contesting.com>
Sent: Wednesday, June 27, 2012 12:53 PM
Subject: Re: [Amps] Oscilloscope Purchase


>  Carl KM1H wrote:
>
>> Anything Tek from the older 465/475 to newer model analog scopes and into
>> digital.
>>
>> High end analog scopes are now bargains as they are being dumped. $50-100
>> can buy quite a lot. Just make sure it is functioning to spec before
>> purchasing; also check for a calibration sticker.
>>
>> The higher the frequency the more expensive the probes altho our Chinese
>> "friends" are producing some very good ones.
>
>  All scopes of all brands with sufficient bandwidth (HF response) will 
> work, but almost everything
> other than HP, Tek, R&S exhibit excessive vertical amplifier DC drift (the 
> trace moves up and down
> as it warms up and throughout the day) which will eventually drive you 
> nutz.
> The Tektronix units were extremely popular and are not rare in any way. 
> Most of these older units
> would be repaired with a parts donor.
>
> -- 
>   Ron Youvan - rmyouvan at gmail.com


The few times Ive been exposed to HP scopes they werent reliable but this 
goes back 20-30 years. Most of the labs I worked in used Tek for scopes and 
HP for most everything else.
This goes back to the 500 series at National in the 60's.

Carl
KM1H